hull0519Medhoo
hull0519Medhoo hull0519Medhoo
  • 22-06-2017
  • Chemistry
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A student takes a measured volume of 3.00 MHCl to prepare a 50.0 mL sample of 1.80 M HCl. What volume of 3.00 M HCl did the student use to make the sample?

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LeChatNoir
LeChatNoir LeChatNoir
  • 22-06-2017
Volume of 3M solution: x
Moles in 3M solution: 3x

C = n/V
1,8 = 3x/0,05dm³
0,09 = 3x
x = 0,03dm³

A student need 0,03dm³ 3M HCl and 0,02dm³ of water.
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